Transient neurologic and ocular manifestations in primary thrombocythemia

Author:

Michiels Jan J.,Koudstaal Peter J.,Mulder Andries H.,van Vliet Huub H.D.M.

Abstract

We report the presenting neurologic and visual symptoms in 17 patients with primary thrombocythemia. Poorly localizing symptoms occurred in 14 patients: transient unsteadiness in 13, dysarthria in eight, and scintillating scotomata in four. Nine patients had focal symptoms: transient monocular blindness in two patients, transient mono- or hemiparesis in six, and both of these in one patient. The attacks all had a sudden onset, occurred sequentially rather than simultaneously, lasted for a few seconds to several minutes, and were usually associated with a dull or pulsatile headache. A causal platelet-mediated arterial thrombosis was evident in 15 patients. There were no recurrences of thrombotic or ischemic events during long-term treatment of 12 patients with aspirin and during cytostatic reduction of platelet count to normal in seven patients. We conclude that low-dose aspirin and reduction of platelet count to normal are effective, but coumarin is ineffective, in the treatment and prevention of arterial thrombosis in thrombocythemia.

Publisher

Ovid Technologies (Wolters Kluwer Health)

Subject

Neurology (clinical)

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